The 1st link shows a variety of Dell desktops. Depending on which one you get you can play the game on med up to highest settings. For example the AMD RX560 or RX570 will do medium, maybe high settings. the RX580 will do high settings. The GTX 1060 will do highest settings and is best if you are doing any video editing and/or game/video streaming.
The Dell from NewEgg, from the 2nd link should do fine at settings between med. and high as well.
If you find you need a new power supply, you can order one and have it put in by a techie friend or take it to a computer shop and have them install it. It's recommended to have a 500 watt power supply or better. That way it has enough power to run both the video card and system.